Hi guys, I forgot to ask when I was on the phone about your opinions on adding acetone to IN2. 

Hi Dave,

I wouldn't advise thinning the epoxy with acetone, it is sometimes ok (although not great practice) to thin epoxies when you are using it to coat somthing in a very thin layer. With infusion though, the acetone will boil under vacuum and being a closed process the acetone will not be able to evapourate from the resin so it will have significant structural effects. By all means experiment with it (that's half of what composites is all about!) but I don't thing that you are likely to get the results that you are after, maybe some one else here ahs tried it and can shed some light on the results!

Paul Statham
Easy Composites / Carbon Mods - Technical

Okay thanks for your advice Paul. Are there any other methods of getting a slightly less brittle epoxy. Any sort of plasticisers or impact modifiers? Any thing that will give it better energy absorption on impact, even a some sort of plasticiser that will cause the resin to plastically deform a little more before failiure.